Dictionary/相乗そうじょうSoujou相乗 (Soujou) is a Japanese noun meaning “multiplication, synergism”.Meaningsnoun, suru verbmultiplication; synergismKanji in 相乗相inter-乗rideRelated words相手companion乗るto get on (train, plane, bus, ship, etc.)相談consultation乗せるto place on (something)可哀想poor相変わらずas usual相当corresponding to (in meaning, function, etc.)相minister (of a government department)真相truth名乗るto give one's name (as)乗り越えるto climb over相応しいappropriate